Smoke consumer



March 4, 1930. J, w, HULSON 1,749,028

SMOKE CONSUMER NU I' l s@ @bte/majo March 4, 1930. J. w. HULSON 1,749,028

SMOKE CONSUMER Filed Sept. 15, 1928 5 She'etS-Sheet 2 @2M/Immo M MH@ Z907@ v J. W. HULSON Mar'ch 4, 1930.

' SMOKE CONSUMER Filed sept. 15, 192e 5 Sheets-Sheet 4 l Patented Mar. 4, 1930 JOHN HULsON, OF KEOKUKQIOWA, AssIGNOR To HULSON @RATE COMPANY, 1N-

CORPORATED, on KEOKUK, IOWA, A, CORPORATION OF IOWA SMOKE CONSUMER Application led September 13, 1928-. Serial No.lSOgZGll;

- ficient constructionand arrangement'of parts Vfor injecting air into'the volatile gases at the i5 rear end of a. boiler furnace, converting them within the scope of the invention as claimed, Y variation'smay be made.

into combustible nature andcausing them to flash or ignite prior to escape through the stack, thereby preventing the discharge yof dense smoke.`

' vAnother Object ofthe invention is to .pro-

vide vsupporting lmeans for the air-injecting means, "in the 'formlof a bar whichmaytake thepla'ce of the usual tie bar at the'rear end 'of the grate, for the purpose of tyingy to- 15 ygetherf'two longitudinal finger bar supports,

formingcustoinary parts of th'egrate vstructure. v Y', f y

lVVith'the foregoing in view, the invention 'reside's'in Ythenovel subj ect matterhereinafter 3 described and claimed,fdes cription being vaccomplishedby reference' to ythe accompanying drawings.

Fig. 1 Vis a-perspctive view showing the lowerside of a grate and the invention-operj ativelyrelatedthere'with.

1F ig. -42 is atop plan View jpartly broken l away.

Figlis a vertical transverse' section sub- *stantiailly Von -lin'e 3-3 of FigQ.

l is a vertical longitudinal section on line il-f4 OfiFig. 2.

Fig. 5 is a fragmentary perspective view.

lustrate the preferred form of construction, and while this construction will be herein specifically explain-ed, it is to be understood that G denotes a grate structureand B has reference to a bridge wall at the rear end thereof. The grate structure G embodies the usual longitudinal finger bar supports F whose rear ends are provided with inwardly projecting lugs L customarily bolted to a dead grate 'or tiebar. For this dead grate or tie bar, I substitute a tie bar 6 and secure it to the lugs L by bolts7. This tie bar is'formed kwith one ormore openings such-as 8, preferably elongated longitudinallyl of said bar, two of these openings being shown. Projecting downwardly fromV the bar 6 and communicat ing with the opening or openings 8 thereof is a Venturi tubef9,'one of these tubes being shown for eachof vthe two openings Y8in the present disclosure. Nozzles 10 for steam, Vor other -desired fluid runder pressure, are `1pI'O- vided below the Venturi tubesQandinfaXi'al alinement Vwith them, soy that V:upward blasts from said Anozzles will :induce an abundance of air Ato travel throughl theftubes-9 and openings 8. Provision ismade 'aboveeach ofth'ese openings for diffusingthe'air-andfluid rising therethrough, said means preferably consisting lof a. 4plurality of transverse, deflecting -webs 11 :extendingacross the space `circum- Yscribed by a wall 12, sai-d -wall yrisingfrom the `bar 6 around'the opening or openings'S. The webs 11 exjtendacross the vopening or openings'S'an'd arei disposed at such angles as converte-dinto a combustible,naturera'nd will.

be-burned,overcomingithe vdischarge of dense j smoke. n f

Preferably,the wall 1Q. is of greater height vat the"bridge fwa1lside7rthereof,than at its 'T11 areinclinedtoward'said bridge'wall side, e Y vas ithasbeenifoundthat .byiso7 doing, thein- The drawings above briefly described, ilf going airl and the alike 'will .imiX more thoroughly with the volatilagases.

,In the preferred construction, the awall isintegral with `the bar i 6 and 'the enturi tubeortubes-Qiseparately formed from said bar. In'the present showing,-the twoitubes 9 are integrally .joinediat theirrupper ends to 1a plate 1"'8 which issecuredfby'bolts 14 to ythe lower side of bar 6, said tubes beingalsointegrally connected .by a vertical web 15' which extends between them. A 'Projecting ,downwardly from= this web, fa lug 16 is shown, 'to

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charge. The device may either be operated continuously, or only brought into operation when throwing fresh fuel onto the fire.

I claim l. A smoke consumer for furnaces, comprising a Venturi tube, means for mounting said Venturi tube in a substantially vertical position, a fluid nozzle at the lower end of said tube for upwardly directing a blast of fluid therethrough to induce ascent of air through the tube, a continuous upwardly opening wall around the upper end of said Venturi tube, and a plurality of upwardly diverging webs spanning the space Within said wall for.

diffusing the air and fluid ascending through said tube.

2. Asmoke consumer for furnaces, conipiising a bar adapted for mounting at the rear end of a grate, said bar having an opening, a Venturi tube projecting downwardly from said bar and communicating with said opening, a fluid nozzle at the lower end of said Venturi tube for upwardly directing a blast of fluid to induce ascent of air through the tube, a continuousupwardly opening wall rising .from the bar around said opening, and upwardly diverging air diffusing' webs spann ning the space surrounded by said wall.

A smoke consumer for furnaces, comprising a horizontal bar having spaced openings, spaced Venturi tubesvsecured to said bar and projecting downwardly therefrom in communication with said openings, a web eX- tending between and joined to said Venturi tubes, a lug joined to and projecting downwardly from said web,a nozzle support secured to said lug, and fiuid nozzles mounted on said support for directing upward blasts of fluid through said tubes to induce air to ascend through said tubes.

. 4. A smoke consumer for furnaces, comprising a horizontal bar having spaced openings, spaced Venturi tubes secured to said bar and projecting downwardly therefrom in communication with said openings, a web eX- 'tending between and joined Vto said Venturi tubes, a lug joined to and projecting downwardly from said web, a nozzle support secured to said lug, a continuous wall rising from said bar around said openings, webs spanning the space surrounded by said wall and adapted to diffuse the air and fluid rising through said openings, and fluid nozzles mounted on the aforesaid nozzle support for upwardly directing blasts of fiuid through said tubes.

5. In combination with a furnace grate having longitudinal finger bar supports and transverse finger bars mounted thereon; a transverse bar behind the rearmost finger bar and resting on said finger bar supports, said bar having an opening between its ends from its lower to its upper side, bolts securing` the ends of vsaid bar upon said finger bar supports, a Venturi tube secured to and projecting downwardly from said bar in communication with its opening, a nozzle at the lower end of said tube for upwardly directing i fluid therethrough, a continuous wall secured to and rising from said bar around said opening, and fluid diffusing means within said wall. i

6. In a smoke consumer for a furnace, a horizontal bar having an opening from its lower to its upper side, aY Venturi tube se'- Cured to and projecting downwardly from said bar in communication with said opening, a nozzle for upwardly directing fiuid through said Venturi tube-` a continuous wall secured tosaid bar around saidopening and projecting upwardly fromY the bar, and means within said wall for diffusing fluid ris` ing therethrough. Y

7. In a smoke consumer for a furnace, a horizontal bar having an opening from its lower to its upper side, a Venturi tube se cured to and projecting downwardly from said bar in communication withsaid opening avnozzle support secured to said Venturi tube, a nozzle secured to said support for upwardly directing fiuid through said Venturi tube, a continuous wall secured to said bar around said opening and projecting upwardlupwardly diverging webs extending between saidfiont and backportions of said wall and' Y having rearwardlyinclined upper ends.

In testimony whereof I have hereunto af fixed my signature.

JOHN w. iiUL'soN. 

